Question 326171
Clyde's age is 5 years more than twice Bonnie's age. 
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C = 2B + 5
B = (C-5)/2
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If the product of their ages is 105, how old is Clyde?
CB = 105
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Substitute for "B" and solve for "C":
C[(C-5)/2] = 105
C^2-5C-210 = 0
C = 17.21 years
Note: I graphed it and found this answer.
You could use the quadratic formula.
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Cheers,
Stan H.

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